Android 6.0 Marshmallow is now rolling out for LG G3 belonging to T-Mobile and AT&T. In the previous guide we have posted guide on AT&T LG G3 you can have an overview of it as well, the Android 6.0 Marshmallow firmware for T-Mobile LG G3 carries security patch for the last month with build number MRA58K along D85130D software version, usually carriers took delay as compared to unlocked devices for releasing firmware updates as they put their own apps inside firmware and then release it after multiple testing. The Marshmallow update for T-Mobile LG G3 is also packed with amazing new features including Doze Mode, and better apps permission further you would be on latest firmware. Fortunately we have found the Android 6.0 Marshmallow firmware update in the link so that you can install it manually without waiting for the OTA.
LG Flashtool Method (Manual process): Download Android 6.0 Marshmallow D85130D for T-Mobile LG G5 KDZ file [D85130d_00_0404.kdz]
TWRP recovery Flashable: Download Android 6.0 Marshmallow D85130D for T-Mobile LG G5, download and flash it via custom recovery.
Update D85130D Stock Marshmallow on T-Mobile LG G3 via OTA
To update T-Mobile LG G3 on Android 6.0 Marshmallow D85130D firmware you don’t need to download multiple file for it, just you need your device and the working internet connection. You must also remember that OTA process works only on Stock devices which means your device is no longer rooted while you searching for latest firmware via OTA. If you think your device is rooted then don’t waste your time switch to alternative firmware update processes or if possible un-root it and then give it a try. But we don’t recommend you to get stuck in such a long un-rooting process just manually if the download link is available. If you think you are all set to go, then
Go to device Settings >> tap on About device >> Software updates.
Now tap it to check the latest available firmware. Upon it’s availability you will be prompted about the update, now what just tap “Download Now” to instantly download the firmware or “Download later” if you wish to download later. Some times it depends on the region too for example, if the update is released for a specific region but you are not present there it will take some delay until firmware update reaches that region.